Then they can be further recrystallized to biphenyl with a purity of over 99.9 %.进一步用溶剂结晶法去除了联苯中的杂质,获得99.9%以上联苯.Methods A new synthesis route for felbinac preparation was studied with biphenyl under ultrasound.方法:以联苯为原料,...
Despite her wish to defy convention, she had become pregnant and married at 21.尽管她不想遵循传统习俗，但她还是在21岁的时候就怀孕并且结婚了。I promised myself I'd defy all the prophets of doom and battle back to fitness.我发誓要打破所有的死亡预言，力争恢复健康。Thro...
the sibilant sound of whispering窃窃私语声With a sibilant hiss, the Things began to move.藉由一声丝丝作声的嘘声, 事物开始移动.To pronounce with a hissing sound ; make sibilant.用初始的齿擦音发出....